Table 6.
ORT | NDV | |
---|---|---|
Group1 | ||
0-DLML | 12879b | 236 |
0-MHAL | 11116b | 768 |
0-DLMH | 15022b | 443 |
0-MHAH | 14571b | 376 |
HE-DLML | 23072a | 69 |
HE-MHAL | 17976ab | 150 |
HE-DLMH | 15849b | 117 |
HE-MHAH | 19120b | 139 |
Infection | ||
0 | 13,397 | 441 |
HE | 19,004 | 119 |
Met dosage | ||
Low | 14,581 | 358 |
High | 15,611 | 324 |
Met source | ||
DLM | 15,620 | 265 |
MHA | 14,572 | 421 |
SEM2 | 687 | 185 |
p – values | ||
Infection | < 0.001 | 0.004 |
Dose | 0.932 | 0.746 |
Source | 0.473 | 0.215 |
Interactions | 0.0393 | nd4 |
1Feeds administered to uninfected (0) and infected (HE) turkeys in weeks 1–4 and 5–8, contained DLM and the equivalent amount of MHA at two levels: low (L) - 0.55, 0.45, and high (H) - 0.78, 0.65, respectively [% as fed]
2SEM- standard error of the mean
3Significant interactions between the experimental factors; HEV added anti-ORT antibody titres, particularly in turkeys fed feeds with lower DLM content
4nd – not detected: no significant infection x dose, infection x source, dose x source or infection x dose x source interactions